What type of yellow is the peony and roses

What type of yellow is the peony and rosesCould someone tell me what type of yellow was use on the gumpaste large peony. There is even a lighter shade on the rose what colour is that? Was it airbrushed or dusted in petal dust? Thanks...

Could someone tell me what type of yellow was use on the gumpaste large peony. There is even a lighter shade on the rose what colour is that?